API Flanged Gate Valve

The API Flanged Gate Valve is designed in accordance with API 6D / ISO 10434 standards, offering reliable shut-off solutions for oil, gas, chemical, and industrial pipeline systems. Constructed from high-strength forged or cast steel, the valve delivers exceptional pressure resistance and corrosion durability, ensuring stable operation under high-temperature and high-pressure conditions.

Featuring a wedge-shaped gate design, the valve provides smooth operation and dependable sealing, suitable for bidirectional shut-off. The stem is available in rising or non-rising designs, paired with a variety of sealing materials (PTFE, flexible graphite, or metal), ensuring long-term leak-free performance. Valves can be equipped with manual, gearbox, or pneumatic/electric actuators, allowing both local and automated operation.

With a robust structure and easy maintenance, this valve is ideal for high-pressure pipelines, critical processes, and industrial systems, offering a reliable solution for fluid shut-off applications.

  • Pressure Rating: 150 LB – 2500 LB, 1.0 – 42.0 MPa

  • Size Range: 1/2″ – 60″ (DN 15 – DN 1500)

  • Working Temperature: -29°C to 425°C

  • Standards: API, ANSI, ASME, DIN, JIS, BS

  • Materials: Carbon Steel, Stainless Steel, Alloy Steel, Special Alloys

  • Operation: Manual, Gear, Electric, Pneumatic

Structural Characteristics of

  • The valve is designed and manufactured in accordance with advanced international standards, ensuring reliable sealing performance and stable operation.

  • Optimized structural design with a compact layout and clean appearance, providing both functional reliability and visual consistency for industrial installations.

  • A flexible wedge structure is adopted. For large-diameter valves, rolling bearings are integrated to reduce operating torque and ensure smooth and easy operation.

  • A wide selection of body, sealing, packing, and gasket materials is available. Material combinations can be customized according to actual working pressure, temperature, and service media.

  • Flange dimensions and sealing face types comply with international and domestic piping standards, ensuring compatibility with various pipeline systems and meeting diverse engineering requirements.

Main Components Material

NameMaterial
Body / BonnetCF8CF3CF8MCF3MWCBLCBWC6WC9C5
WedgeCF8CF3CF8MCF3MWCBLCBWC6WC9C5
StemF304F304LF316F316L2Cr13F304F304F304F304
Stem NutAluminium Bronze
PackingPTFE / Flexible GraphiteGraphite
GasketPTFE / Metal Wound GasketGraphite
GlandCF8CF3CF8MCF3MWCBLCBWC6WC9C5
BoltStainless Steel35CrMoA
NutStainless Steel45, 35CrMoA
HandwheelCast Steel

Class 150LB Main Connection Dimensions

DNSIZELDD1D2bfn-ΦdHD0
151/2″1089060.334.91024-16158100
203/4″11710069.942.910.924-16163100
251″12711079.450.811.624-16193125
321-1/4″14011588.963.513.224-16250160
401-1/2″16512598.47314.724-16285160
502″178150120.792.116.324-19325180
652-1/2″190180139.7104.817.924-19350190
803″203190152.412719.524-19380200
1004″229230190.5157.224.328-19460230
1255″254255215.9185.724.328-22630250
1506″267280241.3215.925.928-22635260
2008″292345298.5269.92928-22765290
25010″330405362323.830.6212-26895330
30012″356485431.838132.2212-261080350
35014″381535476.3412.835.4212-291295380
40016″406595539.8469.937216-291435400
45018″432635577.9533.440.1216-321625430
50020″457700635584.243.3220-321830450
60024″508815749.3692.248.1220-352175500

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